PEDS206 Lecture : Jan 18 Forces Continued.docx

• School: University of Alberta
• Department: Physical Education and Sport
• Course: PEDS206
• Professor: Pierre Baudin

Document Summary

3rd newtons law: for every action, there is an equal and opposite reaction. Place tail of 2nd vector to tip of 1st vector. Resultant is from tail of 1st vector to tip of last vector. Drawing vectors to scale y select an appropriate scale so that the vector with the maximum magnitude will fit in the available space ex. 1cm = 1 n or 1cm = 100 n y. Lightly draw line of action at appropriate angle using protractor y draw final vector of appropriate length to match scale y when measuring resulting vectors use the same scale to convert to real units. Colinear vectors y when 2 or more vectors have the same line of action, they are called collinear and may be added using vector methods or numerical methods y note: right and up pointing vectors are positive y.